asgardius/virtualx-engine
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions
virtualx-engine/platform/linuxbsd/os_linuxbsd.cpp
Rémi Verschelde d95794ec8a
One Copyright Update to rule them all 
As many open source projects have started doing it, we're removing the
current year from the copyright notice, so that we don't need to bump
it every year.

It seems like only the first year of publication is technically
relevant for copyright notices, and even that seems to be something
that many companies stopped listing altogether (in a version controlled
codebase, the commits are a much better source of date of publication
than a hardcoded copyright statement).

We also now list Godot Engine contributors first as we're collectively
the current maintainers of the project, and we clarify that the
"exclusive" copyright of the co-founders covers the timespan before
opensourcing (their further contributions are included as part of Godot
Engine contributors).

Also fixed "cf." Frenchism - it's meant as "refer to / see".
2023-01-05 13:25:55 +01:00

1112 lines
34 KiB
C++
Raw Blame History

/**************************************************************************/
/* os_linuxbsd.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#include "os_linuxbsd.h"
#include "core/io/dir_access.h"
#include "main/main.h"
#include "servers/display_server.h"
#include "modules/modules_enabled.gen.h" // For regex.
#ifdef MODULE_REGEX_ENABLED
#include "modules/regex/regex.h"
#endif
#ifdef X11_ENABLED
#include "x11/display_server_x11.h"
#endif
#ifdef HAVE_MNTENT
#include <mntent.h>
#endif
#include <dlfcn.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/utsname.h>
#include <unistd.h>
void OS_LinuxBSD::alert(const String &p_alert, const String &p_title) {
const char *message_programs[] = { "zenity", "kdialog", "Xdialog", "xmessage" };
String path = get_environment("PATH");
Vector<String> path_elems = path.split(":", false);
String program;
for (int i = 0; i < path_elems.size(); i++) {
for (uint64_t k = 0; k < sizeof(message_programs) / sizeof(char *); k++) {
String tested_path = path_elems[i].path_join(message_programs[k]);
if (FileAccess::exists(tested_path)) {
program = tested_path;
break;
}
}
if (program.length()) {
break;
}
}
List<String> args;
if (program.ends_with("zenity")) {
args.push_back("--error");
args.push_back("--width");
args.push_back("500");
args.push_back("--title");
args.push_back(p_title);
args.push_back("--text");
args.push_back(p_alert);
}
if (program.ends_with("kdialog")) {
args.push_back("--error");
args.push_back(p_alert);
args.push_back("--title");
args.push_back(p_title);
}
if (program.ends_with("Xdialog")) {
args.push_back("--title");
args.push_back(p_title);
args.push_back("--msgbox");
args.push_back(p_alert);
args.push_back("0");
args.push_back("0");
}
if (program.ends_with("xmessage")) {
args.push_back("-center");
args.push_back("-title");
args.push_back(p_title);
args.push_back(p_alert);
}
if (program.length()) {
execute(program, args);
} else {
print_line(p_alert);
}
}
void OS_LinuxBSD::initialize() {
crash_handler.initialize();
OS_Unix::initialize_core();
system_dir_desktop_cache = get_system_dir(SYSTEM_DIR_DESKTOP);
}
void OS_LinuxBSD::initialize_joypads() {
#ifdef JOYDEV_ENABLED
joypad = memnew(JoypadLinux(Input::get_singleton()));
#endif
}
String OS_LinuxBSD::get_unique_id() const {
static String machine_id;
if (machine_id.is_empty()) {
Ref<FileAccess> f = FileAccess::open("/etc/machine-id", FileAccess::READ);
if (f.is_valid()) {
while (machine_id.is_empty() && !f->eof_reached()) {
machine_id = f->get_line().strip_edges();
}
}
}
return machine_id;
}
String OS_LinuxBSD::get_processor_name() const {
Ref<FileAccess> f = FileAccess::open("/proc/cpuinfo", FileAccess::READ);
ERR_FAIL_COND_V_MSG(f.is_null(), "", String("Couldn't open `/proc/cpuinfo` to get the CPU model name. Returning an empty string."));
while (!f->eof_reached()) {
const String line = f->get_line();
if (line.find("model name") != -1) {
return line.split(":")[1].strip_edges();
}
}
ERR_FAIL_V_MSG("", String("Couldn't get the CPU model name from `/proc/cpuinfo`. Returning an empty string."));
}
void OS_LinuxBSD::finalize() {
if (main_loop) {
memdelete(main_loop);
}
main_loop = nullptr;
#ifdef ALSAMIDI_ENABLED
driver_alsamidi.close();
#endif
#ifdef JOYDEV_ENABLED
if (joypad) {
memdelete(joypad);
}
#endif
}
MainLoop *OS_LinuxBSD::get_main_loop() const {
return main_loop;
}
void OS_LinuxBSD::delete_main_loop() {
if (main_loop) {
memdelete(main_loop);
}
main_loop = nullptr;
}
void OS_LinuxBSD::set_main_loop(MainLoop *p_main_loop) {
main_loop = p_main_loop;
}
String OS_LinuxBSD::get_name() const {
#ifdef __linux__
return "Linux";
#elif defined(__FreeBSD__)
return "FreeBSD";
#elif defined(__NetBSD__)
return "NetBSD";
#elif defined(__OpenBSD__)
return "OpenBSD";
#else
return "BSD";
#endif
}
String OS_LinuxBSD::get_systemd_os_release_info_value(const String &key) const {
static String info;
if (info.is_empty()) {
Ref<FileAccess> f = FileAccess::open("/etc/os-release", FileAccess::READ);
if (f.is_valid()) {
while (!f->eof_reached()) {
const String line = f->get_line();
if (line.find(key) != -1) {
return line.split("=")[1].strip_edges();
}
}
}
}
return info;
}
String OS_LinuxBSD::get_distribution_name() const {
static String systemd_name = get_systemd_os_release_info_value("NAME"); // returns a value for systemd users, otherwise an empty string.
if (!systemd_name.is_empty()) {
return systemd_name;
}
struct utsname uts; // returns a decent value for BSD family.
uname(&uts);
return uts.sysname;
}
String OS_LinuxBSD::get_version() const {
static String systemd_version = get_systemd_os_release_info_value("VERSION"); // returns a value for systemd users, otherwise an empty string.
if (!systemd_version.is_empty()) {
return systemd_version;
}
struct utsname uts; // returns a decent value for BSD family.
uname(&uts);
return uts.version;
}
Vector<String> OS_LinuxBSD::get_video_adapter_driver_info() const {
if (RenderingServer::get_singleton()->get_rendering_device() == nullptr) {
return Vector<String>();
}
const String rendering_device_name = RenderingServer::get_singleton()->get_rendering_device()->get_device_name(); // e.g. `NVIDIA GeForce GTX 970`
const String rendering_device_vendor = RenderingServer::get_singleton()->get_rendering_device()->get_device_vendor_name(); // e.g. `NVIDIA`
const String card_name = rendering_device_name.trim_prefix(rendering_device_vendor).strip_edges(); // -> `GeForce GTX 970`
String vendor_device_id_mappings;
List<String> lspci_args;
lspci_args.push_back("-n");
Error err = const_cast<OS_LinuxBSD *>(this)->execute("lspci", lspci_args, &vendor_device_id_mappings);
if (err != OK || vendor_device_id_mappings.is_empty()) {
return Vector<String>();
}
// Usually found under "VGA", but for example NVIDIA mobile/laptop adapters are often listed under "3D" and some AMD adapters are under "Display".
const String dc_vga = "0300"; // VGA compatible controller
const String dc_display = "0302"; // Display controller
const String dc_3d = "0380"; // 3D controller
// splitting results by device class allows prioritizing, if multiple devices are found.
Vector<String> class_vga_device_candidates;
Vector<String> class_display_device_candidates;
Vector<String> class_3d_device_candidates;
#ifdef MODULE_REGEX_ENABLED
RegEx regex_id_format = RegEx();
regex_id_format.compile("^[a-f0-9]{4}:[a-f0-9]{4}$"); // e.g. `10de:13c2`; IDs are always in hexadecimal
#endif
Vector<String> value_lines = vendor_device_id_mappings.split("\n", false); // example: `02:00.0 0300: 10de:13c2 (rev a1)`
for (const String &line : value_lines) {
Vector<String> columns = line.split(" ", false);
if (columns.size() < 3) {
continue;
}
String device_class = columns[1].trim_suffix(":");
String vendor_device_id_mapping = columns[2];
#ifdef MODULE_REGEX_ENABLED
if (regex_id_format.search(vendor_device_id_mapping).is_null()) {
continue;
}
#endif
if (device_class == dc_vga) {
class_vga_device_candidates.push_back(vendor_device_id_mapping);
} else if (device_class == dc_display) {
class_display_device_candidates.push_back(vendor_device_id_mapping);
} else if (device_class == dc_3d) {
class_3d_device_candidates.push_back(vendor_device_id_mapping);
}
}
// Check results against currently used device (`card_name`), in case the user has multiple graphics cards.
const String device_lit = "Device"; // line of interest
class_vga_device_candidates = OS_LinuxBSD::lspci_device_filter(class_vga_device_candidates, dc_vga, device_lit, card_name);
class_display_device_candidates = OS_LinuxBSD::lspci_device_filter(class_display_device_candidates, dc_display, device_lit, card_name);
class_3d_device_candidates = OS_LinuxBSD::lspci_device_filter(class_3d_device_candidates, dc_3d, device_lit, card_name);
// Get driver names and filter out invalid ones, because some adapters are dummys used only for passthrough.
// And they have no indicator besides certain driver names.
const String kernel_lit = "Kernel driver in use"; // line of interest
const String dummys = "vfio"; // for e.g. pci passthrough dummy kernel driver `vfio-pci`
Vector<String> class_vga_device_drivers = OS_LinuxBSD::lspci_get_device_value(class_vga_device_candidates, kernel_lit, dummys);
Vector<String> class_display_device_drivers = OS_LinuxBSD::lspci_get_device_value(class_display_device_candidates, kernel_lit, dummys);
Vector<String> class_3d_device_drivers = OS_LinuxBSD::lspci_get_device_value(class_3d_device_candidates, kernel_lit, dummys);
static String driver_name;
static String driver_version;
// Use first valid value:
for (const String &driver : class_3d_device_drivers) {
driver_name = driver;
break;
}
if (driver_name.is_empty()) {
for (const String &driver : class_display_device_drivers) {
driver_name = driver;
break;
}
}
if (driver_name.is_empty()) {
for (const String &driver : class_vga_device_drivers) {
driver_name = driver;
break;
}
}
Vector<String> info;
info.push_back(driver_name);
String modinfo;
List<String> modinfo_args;
modinfo_args.push_back(driver_name);
err = const_cast<OS_LinuxBSD *>(this)->execute("modinfo", modinfo_args, &modinfo);
if (err != OK || modinfo.is_empty()) {
info.push_back(""); // So that this method always either returns an empty array, or an array of length 2.
return info;
}
Vector<String> lines = modinfo.split("\n", false);
for (const String &line : lines) {
Vector<String> columns = line.split(":", false, 1);
if (columns.size() < 2) {
continue;
}
if (columns[0].strip_edges() == "version") {
driver_version = columns[1].strip_edges(); // example value: `510.85.02` on Linux/BSD
break;
}
}
info.push_back(driver_version);
return info;
}
Vector<String> OS_LinuxBSD::lspci_device_filter(Vector<String> vendor_device_id_mapping, String class_suffix, String check_column, String whitelist) const {
// NOTE: whitelist can be changed to `Vector<String>`, if the need arises.
const String sep = ":";
Vector<String> devices;
for (const String &mapping : vendor_device_id_mapping) {
String device;
List<String> d_args;
d_args.push_back("-d");
d_args.push_back(mapping + sep + class_suffix);
d_args.push_back("-vmm");
Error err = const_cast<OS_LinuxBSD *>(this)->execute("lspci", d_args, &device); // e.g. `lspci -d 10de:13c2:0300 -vmm`
if (err != OK) {
return Vector<String>();
} else if (device.is_empty()) {
continue;
}
Vector<String> device_lines = device.split("\n", false);
for (const String &line : device_lines) {
Vector<String> columns = line.split(":", false, 1);
if (columns.size() < 2) {
continue;
}
if (columns[0].strip_edges() == check_column) {
// for `column[0] == "Device"` this may contain `GM204 [GeForce GTX 970]`
bool is_valid = true;
if (!whitelist.is_empty()) {
is_valid = columns[1].strip_edges().contains(whitelist);
}
if (is_valid) {
devices.push_back(mapping);
}
break;
}
}
}
return devices;
}
Vector<String> OS_LinuxBSD::lspci_get_device_value(Vector<String> vendor_device_id_mapping, String check_column, String blacklist) const {
// NOTE: blacklist can be changed to `Vector<String>`, if the need arises.
const String sep = ":";
Vector<String> values;
for (const String &mapping : vendor_device_id_mapping) {
String device;
List<String> d_args;
d_args.push_back("-d");
d_args.push_back(mapping);
d_args.push_back("-k");
Error err = const_cast<OS_LinuxBSD *>(this)->execute("lspci", d_args, &device); // e.g. `lspci -d 10de:13c2 -k`
if (err != OK) {
return Vector<String>();
} else if (device.is_empty()) {
continue;
}
Vector<String> device_lines = device.split("\n", false);
for (const String &line : device_lines) {
Vector<String> columns = line.split(":", false, 1);
if (columns.size() < 2) {
continue;
}
if (columns[0].strip_edges() == check_column) {
// for `column[0] == "Kernel driver in use"` this may contain `nvidia`
bool is_valid = true;
const String value = columns[1].strip_edges();
if (!blacklist.is_empty()) {
is_valid = !value.contains(blacklist);
}
if (is_valid) {
values.push_back(value);
}
break;
}
}
}
return values;
}
Error OS_LinuxBSD::shell_open(String p_uri) {
Error ok;
int err_code;
List<String> args;
args.push_back(p_uri);
// Agnostic
ok = execute("xdg-open", args, nullptr, &err_code);
if (ok == OK && !err_code) {
return OK;
} else if (err_code == 2) {
return ERR_FILE_NOT_FOUND;
}
// GNOME
args.push_front("open"); // The command is `gio open`, so we need to add it to args
ok = execute("gio", args, nullptr, &err_code);
if (ok == OK && !err_code) {
return OK;
} else if (err_code == 2) {
return ERR_FILE_NOT_FOUND;
}
args.pop_front();
ok = execute("gvfs-open", args, nullptr, &err_code);
if (ok == OK && !err_code) {
return OK;
} else if (err_code == 2) {
return ERR_FILE_NOT_FOUND;
}
// KDE
ok = execute("kde-open5", args, nullptr, &err_code);
if (ok == OK && !err_code) {
return OK;
}
ok = execute("kde-open", args, nullptr, &err_code);
return !err_code ? ok : FAILED;
}
bool OS_LinuxBSD::_check_internal_feature_support(const String &p_feature) {
#ifdef FONTCONFIG_ENABLED
if (p_feature == "system_fonts") {
return font_config_initialized;
}
#endif
if (p_feature == "pc") {
return true;
}
return false;
}
uint64_t OS_LinuxBSD::get_embedded_pck_offset() const {
Ref<FileAccess> f = FileAccess::open(get_executable_path(), FileAccess::READ);
if (f.is_null()) {
return 0;
}
// Read and check ELF magic number.
{
uint32_t magic = f->get_32();
if (magic != 0x464c457f) { // 0x7F + "ELF"
return 0;
}
}
// Read program architecture bits from class field.
int bits = f->get_8() * 32;
// Get info about the section header table.
int64_t section_table_pos;
int64_t section_header_size;
if (bits == 32) {
section_header_size = 40;
f->seek(0x20);
section_table_pos = f->get_32();
f->seek(0x30);
} else { // 64
section_header_size = 64;
f->seek(0x28);
section_table_pos = f->get_64();
f->seek(0x3c);
}
int num_sections = f->get_16();
int string_section_idx = f->get_16();
// Load the strings table.
uint8_t *strings;
{
// Jump to the strings section header.
f->seek(section_table_pos + string_section_idx * section_header_size);
// Read strings data size and offset.
int64_t string_data_pos;
int64_t string_data_size;
if (bits == 32) {
f->seek(f->get_position() + 0x10);
string_data_pos = f->get_32();
string_data_size = f->get_32();
} else { // 64
f->seek(f->get_position() + 0x18);
string_data_pos = f->get_64();
string_data_size = f->get_64();
}
// Read strings data.
f->seek(string_data_pos);
strings = (uint8_t *)memalloc(string_data_size);
if (!strings) {
return 0;
}
f->get_buffer(strings, string_data_size);
}
// Search for the "pck" section.
int64_t off = 0;
for (int i = 0; i < num_sections; ++i) {
int64_t section_header_pos = section_table_pos + i * section_header_size;
f->seek(section_header_pos);
uint32_t name_offset = f->get_32();
if (strcmp((char *)strings + name_offset, "pck") == 0) {
if (bits == 32) {
f->seek(section_header_pos + 0x10);
off = f->get_32();
} else { // 64
f->seek(section_header_pos + 0x18);
off = f->get_64();
}
break;
}
}
memfree(strings);
return off;
}
Vector<String> OS_LinuxBSD::get_system_fonts() const {
#ifdef FONTCONFIG_ENABLED
if (!font_config_initialized) {
ERR_FAIL_V_MSG(Vector<String>(), "Unable to load fontconfig, system font support is disabled.");
}
HashSet<String> font_names;
Vector<String> ret;
static const char *allowed_formats[] = { "TrueType", "CFF" };
for (size_t i = 0; i < sizeof(allowed_formats) / sizeof(const char *); i++) {
FcPattern *pattern = FcPatternCreate();
ERR_CONTINUE(!pattern);
FcPatternAddBool(pattern, FC_SCALABLE, FcTrue);
FcPatternAddString(pattern, FC_FONTFORMAT, reinterpret_cast<const FcChar8 *>(allowed_formats[i]));
FcFontSet *font_set = FcFontList(config, pattern, object_set);
if (font_set) {
for (int j = 0; j < font_set->nfont; j++) {
char *family_name = nullptr;
if (FcPatternGetString(font_set->fonts[j], FC_FAMILY, 0, reinterpret_cast<FcChar8 **>(&family_name)) == FcResultMatch) {
if (family_name) {
font_names.insert(String::utf8(family_name));
}
}
}
FcFontSetDestroy(font_set);
}
FcPatternDestroy(pattern);
}
for (const String &E : font_names) {
ret.push_back(E);
}
return ret;
#else
ERR_FAIL_V_MSG(Vector<String>(), "Godot was compiled without fontconfig, system font support is disabled.");
#endif
}
#ifdef FONTCONFIG_ENABLED
int OS_LinuxBSD::_weight_to_fc(int p_weight) const {
if (p_weight < 150) {
return FC_WEIGHT_THIN;
} else if (p_weight < 250) {
return FC_WEIGHT_EXTRALIGHT;
} else if (p_weight < 325) {
return FC_WEIGHT_LIGHT;
} else if (p_weight < 375) {
return FC_WEIGHT_DEMILIGHT;
} else if (p_weight < 390) {
return FC_WEIGHT_BOOK;
} else if (p_weight < 450) {
return FC_WEIGHT_REGULAR;
} else if (p_weight < 550) {
return FC_WEIGHT_MEDIUM;
} else if (p_weight < 650) {
return FC_WEIGHT_DEMIBOLD;
} else if (p_weight < 750) {
return FC_WEIGHT_BOLD;
} else if (p_weight < 850) {
return FC_WEIGHT_EXTRABOLD;
} else if (p_weight < 925) {
return FC_WEIGHT_BLACK;
} else {
return FC_WEIGHT_EXTRABLACK;
}
}
int OS_LinuxBSD::_stretch_to_fc(int p_stretch) const {
if (p_stretch < 56) {
return FC_WIDTH_ULTRACONDENSED;
} else if (p_stretch < 69) {
return FC_WIDTH_EXTRACONDENSED;
} else if (p_stretch < 81) {
return FC_WIDTH_CONDENSED;
} else if (p_stretch < 93) {
return FC_WIDTH_SEMICONDENSED;
} else if (p_stretch < 106) {
return FC_WIDTH_NORMAL;
} else if (p_stretch < 137) {
return FC_WIDTH_SEMIEXPANDED;
} else if (p_stretch < 144) {
return FC_WIDTH_EXPANDED;
} else if (p_stretch < 162) {
return FC_WIDTH_EXTRAEXPANDED;
} else {
return FC_WIDTH_ULTRAEXPANDED;
}
}
#endif // FONTCONFIG_ENABLED
Vector<String> OS_LinuxBSD::get_system_font_path_for_text(const String &p_font_name, const String &p_text, const String &p_locale, const String &p_script, int p_weight, int p_stretch, bool p_italic) const {
#ifdef FONTCONFIG_ENABLED
if (!font_config_initialized) {
ERR_FAIL_V_MSG(Vector<String>(), "Unable to load fontconfig, system font support is disabled.");
}
Vector<String> ret;
FcPattern *pattern = FcPatternCreate();
if (pattern) {
FcPatternAddString(pattern, FC_FAMILY, reinterpret_cast<const FcChar8 *>(p_font_name.utf8().get_data()));
FcPatternAddInteger(pattern, FC_WEIGHT, _weight_to_fc(p_weight));
FcPatternAddInteger(pattern, FC_WIDTH, _stretch_to_fc(p_stretch));
FcPatternAddInteger(pattern, FC_SLANT, p_italic ? FC_SLANT_ITALIC : FC_SLANT_ROMAN);
FcCharSet *char_set = FcCharSetCreate();
for (int i = 0; i < p_text.size(); i++) {
FcCharSetAddChar(char_set, p_text[i]);
}
FcPatternAddCharSet(pattern, FC_CHARSET, char_set);
FcLangSet *lang_set = FcLangSetCreate();
FcLangSetAdd(lang_set, reinterpret_cast<const FcChar8 *>(p_locale.utf8().get_data()));
FcPatternAddLangSet(pattern, FC_LANG, lang_set);
FcConfigSubstitute(0, pattern, FcMatchPattern);
FcDefaultSubstitute(pattern);
FcResult result;
FcPattern *match = FcFontMatch(0, pattern, &result);
if (match) {
char *file_name = nullptr;
if (FcPatternGetString(match, FC_FILE, 0, reinterpret_cast<FcChar8 **>(&file_name)) == FcResultMatch) {
if (file_name) {
ret.push_back(String::utf8(file_name));
}
}
FcPatternDestroy(match);
}
FcPatternDestroy(pattern);
FcCharSetDestroy(char_set);
FcLangSetDestroy(lang_set);
}
return ret;
#else
ERR_FAIL_V_MSG(Vector<String>(), "Godot was compiled without fontconfig, system font support is disabled.");
#endif
}
String OS_LinuxBSD::get_system_font_path(const String &p_font_name, int p_weight, int p_stretch, bool p_italic) const {
#ifdef FONTCONFIG_ENABLED
if (!font_config_initialized) {
ERR_FAIL_V_MSG(String(), "Unable to load fontconfig, system font support is disabled.");
}
String ret;
FcPattern *pattern = FcPatternCreate();
if (pattern) {
bool allow_substitutes = (p_font_name.to_lower() == "sans-serif") || (p_font_name.to_lower() == "serif") || (p_font_name.to_lower() == "monospace") || (p_font_name.to_lower() == "cursive") || (p_font_name.to_lower() == "fantasy");
FcPatternAddBool(pattern, FC_SCALABLE, FcTrue);
FcPatternAddString(pattern, FC_FAMILY, reinterpret_cast<const FcChar8 *>(p_font_name.utf8().get_data()));
FcPatternAddInteger(pattern, FC_WEIGHT, _weight_to_fc(p_weight));
FcPatternAddInteger(pattern, FC_WIDTH, _stretch_to_fc(p_stretch));
FcPatternAddInteger(pattern, FC_SLANT, p_italic ? FC_SLANT_ITALIC : FC_SLANT_ROMAN);
FcConfigSubstitute(0, pattern, FcMatchPattern);
FcDefaultSubstitute(pattern);
FcResult result;
FcPattern *match = FcFontMatch(0, pattern, &result);
if (match) {
if (!allow_substitutes) {
char *family_name = nullptr;
if (FcPatternGetString(match, FC_FAMILY, 0, reinterpret_cast<FcChar8 **>(&family_name)) == FcResultMatch) {
if (family_name && String::utf8(family_name).to_lower() != p_font_name.to_lower()) {
FcPatternDestroy(match);
FcPatternDestroy(pattern);
return String();
}
}
}
char *file_name = nullptr;
if (FcPatternGetString(match, FC_FILE, 0, reinterpret_cast<FcChar8 **>(&file_name)) == FcResultMatch) {
if (file_name) {
ret = String::utf8(file_name);
}
}
FcPatternDestroy(match);
}
FcPatternDestroy(pattern);
}
return ret;
#else
ERR_FAIL_V_MSG(String(), "Godot was compiled without fontconfig, system font support is disabled.");
#endif
}
String OS_LinuxBSD::get_config_path() const {
if (has_environment("XDG_CONFIG_HOME")) {
if (get_environment("XDG_CONFIG_HOME").is_absolute_path()) {
return get_environment("XDG_CONFIG_HOME");
} else {
WARN_PRINT_ONCE("`XDG_CONFIG_HOME` is a relative path. Ignoring its value and falling back to `$HOME/.config` or `.` per the XDG Base Directory specification.");
return has_environment("HOME") ? get_environment("HOME").path_join(".config") : ".";
}
} else if (has_environment("HOME")) {
return get_environment("HOME").path_join(".config");
} else {
return ".";
}
}
String OS_LinuxBSD::get_data_path() const {
if (has_environment("XDG_DATA_HOME")) {
if (get_environment("XDG_DATA_HOME").is_absolute_path()) {
return get_environment("XDG_DATA_HOME");
} else {
WARN_PRINT_ONCE("`XDG_DATA_HOME` is a relative path. Ignoring its value and falling back to `$HOME/.local/share` or `get_config_path()` per the XDG Base Directory specification.");
return has_environment("HOME") ? get_environment("HOME").path_join(".local/share") : get_config_path();
}
} else if (has_environment("HOME")) {
return get_environment("HOME").path_join(".local/share");
} else {
return get_config_path();
}
}
String OS_LinuxBSD::get_cache_path() const {
if (has_environment("XDG_CACHE_HOME")) {
if (get_environment("XDG_CACHE_HOME").is_absolute_path()) {
return get_environment("XDG_CACHE_HOME");
} else {
WARN_PRINT_ONCE("`XDG_CACHE_HOME` is a relative path. Ignoring its value and falling back to `$HOME/.cache` or `get_config_path()` per the XDG Base Directory specification.");
return has_environment("HOME") ? get_environment("HOME").path_join(".cache") : get_config_path();
}
} else if (has_environment("HOME")) {
return get_environment("HOME").path_join(".cache");
} else {
return get_config_path();
}
}
String OS_LinuxBSD::get_system_dir(SystemDir p_dir, bool p_shared_storage) const {
if (p_dir == SYSTEM_DIR_DESKTOP && !system_dir_desktop_cache.is_empty()) {
return system_dir_desktop_cache;
}
String xdgparam;
switch (p_dir) {
case SYSTEM_DIR_DESKTOP: {
xdgparam = "DESKTOP";
} break;
case SYSTEM_DIR_DCIM: {
xdgparam = "PICTURES";
} break;
case SYSTEM_DIR_DOCUMENTS: {
xdgparam = "DOCUMENTS";
} break;
case SYSTEM_DIR_DOWNLOADS: {
xdgparam = "DOWNLOAD";
} break;
case SYSTEM_DIR_MOVIES: {
xdgparam = "VIDEOS";
} break;
case SYSTEM_DIR_MUSIC: {
xdgparam = "MUSIC";
} break;
case SYSTEM_DIR_PICTURES: {
xdgparam = "PICTURES";
} break;
case SYSTEM_DIR_RINGTONES: {
xdgparam = "MUSIC";
} break;
}
String pipe;
List<String> arg;
arg.push_back(xdgparam);
Error err = const_cast<OS_LinuxBSD *>(this)->execute("xdg-user-dir", arg, &pipe);
if (err != OK) {
return ".";
}
return pipe.strip_edges();
}
void OS_LinuxBSD::run() {
if (!main_loop) {
return;
}
main_loop->initialize();
//uint64_t last_ticks=get_ticks_usec();
//int frames=0;
//uint64_t frame=0;
while (true) {
DisplayServer::get_singleton()->process_events(); // get rid of pending events
#ifdef JOYDEV_ENABLED
joypad->process_joypads();
#endif
if (Main::iteration()) {
break;
}
}
main_loop->finalize();
}
void OS_LinuxBSD::disable_crash_handler() {
crash_handler.disable();
}
bool OS_LinuxBSD::is_disable_crash_handler() const {
return crash_handler.is_disabled();
}
static String get_mountpoint(const String &p_path) {
struct stat s;
if (stat(p_path.utf8().get_data(), &s)) {
return "";
}
#ifdef HAVE_MNTENT
dev_t dev = s.st_dev;
FILE *fd = setmntent("/proc/mounts", "r");
if (!fd) {
return "";
}
struct mntent mnt;
char buf[1024];
size_t buflen = 1024;
while (getmntent_r(fd, &mnt, buf, buflen)) {
if (!stat(mnt.mnt_dir, &s) && s.st_dev == dev) {
endmntent(fd);
return String(mnt.mnt_dir);
}
}
endmntent(fd);
#endif
return "";
}
Error OS_LinuxBSD::move_to_trash(const String &p_path) {
String path = p_path.rstrip("/"); // Strip trailing slash when path points to a directory
int err_code;
List<String> args;
args.push_back(path);
args.push_front("trash"); // The command is `gio trash <file_name>` so we need to add it to args.
Error result = execute("gio", args, nullptr, &err_code); // For GNOME based machines.
if (result == OK && !err_code) {
return OK;
} else if (err_code == 2) {
return ERR_FILE_NOT_FOUND;
}
args.pop_front();
args.push_front("move");
args.push_back("trash:/"); // The command is `kioclient5 move <file_name> trash:/`.
result = execute("kioclient5", args, nullptr, &err_code); // For KDE based machines.
if (result == OK && !err_code) {
return OK;
} else if (err_code == 2) {
return ERR_FILE_NOT_FOUND;
}
args.pop_front();
args.pop_back();
result = execute("gvfs-trash", args, nullptr, &err_code); // For older Linux machines.
if (result == OK && !err_code) {
return OK;
} else if (err_code == 2) {
return ERR_FILE_NOT_FOUND;
}
// If the commands `kioclient5`, `gio` or `gvfs-trash` don't exist on the system we do it manually.
String trash_path = "";
String mnt = get_mountpoint(path);
// If there is a directory "[Mountpoint]/.Trash-[UID], use it as the trash can.
if (!mnt.is_empty()) {
String mountpoint_trash_path(mnt + "/.Trash-" + itos(getuid()));
struct stat s;
if (!stat(mountpoint_trash_path.utf8().get_data(), &s)) {
trash_path = mountpoint_trash_path;
}
}
// Otherwise, if ${XDG_DATA_HOME} is defined, use "${XDG_DATA_HOME}/Trash" as the trash can.
if (trash_path.is_empty()) {
char *dhome = getenv("XDG_DATA_HOME");
if (dhome) {
trash_path = String::utf8(dhome) + "/Trash";
}
}
// Otherwise, if ${HOME} is defined, use "${HOME}/.local/share/Trash" as the trash can.
if (trash_path.is_empty()) {
char *home = getenv("HOME");
if (home) {
trash_path = String::utf8(home) + "/.local/share/Trash";
}
}
// Issue an error if none of the previous locations is appropriate for the trash can.
ERR_FAIL_COND_V_MSG(trash_path.is_empty(), FAILED, "Could not determine the trash can location");
// Create needed directories for decided trash can location.
{
Ref<DirAccess> dir_access = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
Error err = dir_access->make_dir_recursive(trash_path);
// Issue an error if trash can is not created properly.
ERR_FAIL_COND_V_MSG(err != OK, err, "Could not create the trash path \"" + trash_path + "\"");
err = dir_access->make_dir_recursive(trash_path + "/files");
ERR_FAIL_COND_V_MSG(err != OK, err, "Could not create the trash path \"" + trash_path + "/files\"");
err = dir_access->make_dir_recursive(trash_path + "/info");
ERR_FAIL_COND_V_MSG(err != OK, err, "Could not create the trash path \"" + trash_path + "/info\"");
}
// The trash can is successfully created, now we check that we don't exceed our file name length limit.
// If the file name is too long trim it so we can add the identifying number and ".trashinfo".
// Assumes that the file name length limit is 255 characters.
String file_name = path.get_file();
if (file_name.length() > 240) {
file_name = file_name.substr(0, file_name.length() - 15);
}
String dest_path = trash_path + "/files/" + file_name;
struct stat buff;
int id_number = 0;
String fn = file_name;
// Checks if a resource with the same name already exist in the trash can,
// if there is, add an identifying number to our resource's name.
while (stat(dest_path.utf8().get_data(), &buff) == 0) {
id_number++;
// Added a limit to check for identically named files already on the trash can
// if there are too many it could make the editor unresponsive.
ERR_FAIL_COND_V_MSG(id_number > 99, FAILED, "Too many identically named resources already in the trash can.");
fn = file_name + "." + itos(id_number);
dest_path = trash_path + "/files/" + fn;
}
file_name = fn;
String renamed_path = path.get_base_dir() + "/" + file_name;
// Generates the .trashinfo file
OS::DateTime dt = OS::get_singleton()->get_datetime(false);
String timestamp = vformat("%04d-%02d-%02dT%02d:%02d:", dt.year, (int)dt.month, dt.day, dt.hour, dt.minute);
timestamp = vformat("%s%02d", timestamp, dt.second); // vformat only supports up to 6 arguments.
String trash_info = "[Trash Info]\nPath=" + path.uri_encode() + "\nDeletionDate=" + timestamp + "\n";
{
Error err;
{
Ref<FileAccess> file = FileAccess::open(trash_path + "/info/" + file_name + ".trashinfo", FileAccess::WRITE, &err);
ERR_FAIL_COND_V_MSG(err != OK, err, "Can't create trashinfo file: \"" + trash_path + "/info/" + file_name + ".trashinfo\"");
file->store_string(trash_info);
}
// Rename our resource before moving it to the trash can.
Ref<DirAccess> dir_access = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
err = dir_access->rename(path, renamed_path);
ERR_FAIL_COND_V_MSG(err != OK, err, "Can't rename file \"" + path + "\" to \"" + renamed_path + "\"");
}
// Move the given resource to the trash can.
// Do not use DirAccess:rename() because it can't move files across multiple mountpoints.
List<String> mv_args;
mv_args.push_back(renamed_path);
mv_args.push_back(trash_path + "/files");
{
int retval;
Error err = execute("mv", mv_args, nullptr, &retval);
// Issue an error if "mv" failed to move the given resource to the trash can.
if (err != OK || retval != 0) {
ERR_PRINT("move_to_trash: Could not move the resource \"" + path + "\" to the trash can \"" + trash_path + "/files\"");
Ref<DirAccess> dir_access = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
err = dir_access->rename(renamed_path, path);
ERR_FAIL_COND_V_MSG(err != OK, err, "Could not rename \"" + renamed_path + "\" back to its original name: \"" + path + "\"");
return FAILED;
}
}
return OK;
}
OS_LinuxBSD::OS_LinuxBSD() {
main_loop = nullptr;
#ifdef PULSEAUDIO_ENABLED
AudioDriverManager::add_driver(&driver_pulseaudio);
#endif
#ifdef ALSA_ENABLED
AudioDriverManager::add_driver(&driver_alsa);
#endif
#ifdef X11_ENABLED
DisplayServerX11::register_x11_driver();
#endif
#ifdef FONTCONFIG_ENABLED
#ifdef DEBUG_ENABLED
int dylibloader_verbose = 1;
#else
int dylibloader_verbose = 0;
#endif
font_config_initialized = (initialize_fontconfig(dylibloader_verbose) == 0);
if (font_config_initialized) {
config = FcInitLoadConfigAndFonts();
if (!config) {
font_config_initialized = false;
}
object_set = FcObjectSetBuild(FC_FAMILY, FC_FILE, nullptr);
if (!object_set) {
font_config_initialized = false;
}
}
#endif // FONTCONFIG_ENABLED
}
OS_LinuxBSD::~OS_LinuxBSD() {
#ifdef FONTCONFIG_ENABLED
if (object_set) {
FcObjectSetDestroy(object_set);
}
if (config) {
FcConfigDestroy(config);
}
#endif // FONTCONFIG_ENABLED
}
Reference in a new issue View git blame Copy permalink